It's true that Islam and Christianity are growing exponentially around the world. Christianity is growing in the southern hemisphere and Asia, while Islam is growing in Europe. What alarms me is that in maybe in 50-100 years Europe will be dominated by Muslims while the southern parts of the world will be dominated by Christians. If so there could be wars. America is following in the footsteps of Europe by becoming more secular. If America steps in between them she will have to deal with the might of Europe aimed at the Christian tribes in the south. Then all hell will break loose with another World War. And in this war these countries will have more advanced weapons of warfare. It could happen. We have just a small window of opportunity.

Europe isn't going to become Muslim. Muslims are less than 4% of the total EU population (in the country with the highest percentage, France, they are only 8% -- much smaller than the percentage of, say, blacks or Hispanics in the US). The formerly-high birth rates of Muslims in Europe are decreasing to converge with the birth rates of the natives, while many European Muslims are becoming secular in outlook or even leaving Islam entirely (this is hard to measure since such people are often reluctant to go public).

It took a while, but the attractiveness and assimilative power of Western culture is winning out.

Here's an article on the situation in France; here's a posting of mine going over the critical points from it, with some links to related items.

Both numerically speaking and in terms of their chances of overwhelming and dominating the secular mainstream society, Muslims in Europe are a smaller threat than the Christian Right in the US.

Usually religion grows most among the economically disenfranchised. In this group you find the most radical forms of this nonsense. Economic improvement and availability of educational opportunities have historically served to mitigate religious extremism.

I have trouble seeing a conversion of mostly Catholics, into "true Christians" as a reason for developing countries in South America wanting to get in a religious war with European muslims. The logistics alone make it unlikely.

A year ago, I probably would have agreed with you on this. But recently, Geert Wilders has been gaining quite a bit of support. And things like the burqa and minaret bans do show that Europeans are not going to let Islam take over.